The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 2014
Filed:
Aug. 06, 2012
Applicant:
Wing Sum Vincent Kwan, Chicago, IL (US);
Inventor:
Wing Sum Vincent Kwan, Chicago, IL (US);
Assignee:
Sanford, L.P., Downers Grove, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/128 (2006.01); C09D 5/26 (2006.01); C09D 11/16 (2014.01); C09D 11/18 (2006.01);
U.S. Cl.
CPC ...
B41M 5/128 (2013.01); C09D 11/18 (2013.01); C09D 5/26 (2013.01); C09D 11/16 (2013.01); B41M 2205/18 (2013.01);
Abstract
The disclosure is generally related to an irreversible thermochromic ink composition and, more particularly, to an irreversible thermochromic ink composition comprising a carrier and thermochromic capsules, the thermochromic capsules comprising a shell and a core, the core comprising an eradicable dye capable of becoming substantially colorless and/or of changing color from a first colored state to a second colored state when exposed to an eradicator.